It's a guard rail warning sign
I assume you mean vertical, not verdical.The rectangle has 2 vertical lines, and 2 horizontal lines.
Possibly rear window defroster.
Upright.
Diagonal is a straight line through a figure from one corner to another corner, for example, the diagonal divided the square into two triangles.
It is not clear what you mean by an incomplete rectangle. If it means the rectangle is not closed then there is a problem of defining its area: what is inside and what is outside when you do not have a boundary? It is not clear what you mean by an incomplete rectangle. If it means the rectangle is not closed then there is a problem of defining its area: what is inside and what is outside when you do not have a boundary? It is not clear what you mean by an incomplete rectangle. If it means the rectangle is not closed then there is a problem of defining its area: what is inside and what is outside when you do not have a boundary? It is not clear what you mean by an incomplete rectangle. If it means the rectangle is not closed then there is a problem of defining its area: what is inside and what is outside when you do not have a boundary?
if there is a number attached to a shaded rectangle mean
No! Every rectangle has a square if that's what you mean
Area of a square/rectangle=its length × its width
What I mean is, a rectangle where none of the sides are the same. Like a Scalene triangle, but with a rectangle.
Pure and upright
yes it can
The term "diagonal" refers to a line segment that connects two non-adjacent vertices of a polygon or polyhedron. In geometry, diagonals are used to describe lines that cross through the interior of a shape, such as a rectangle or a square. For example, a rectangle has two diagonals that intersect at its center. Diagonal lines can also refer to orientations in graphs or coordinate systems that are not aligned with the axes.